Shutter-worker



(No Model.) v

, 40. DE CHAMP. SHUTTEB.- WORKER.

Patented Nov. 20, 1894.

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PATENT Tirion.

OBED DE CHAMP, OF EVERET'I, MASSACHUSETTS.

sHUTTERf WORKER.

SPECIFICATION forming part'of Letters Patent No. 529,607, dated November 20, 1894.

Application tiled March Z8, 1894. Serial No. 505,442. (No model.)

To a/ZZ whom it may concern.-

Be it known that I, OBED DE CHAMP, aciti,v zen of the United States, residing at Everett. in the county of Middlesexand State of Massachusetts, have invented a new and useful Improvement; in Shutter-Workers, of which the following is a specification.

This invention relates to an improvement in shutter Workers or blind-operators, and consists in the novel construction and arrangement of parts hereinafter described, whereby the blinds may be opened and closed from the inside of the building and locked in either position. n

In the accompanying drawings, in which similar letters of reference indicate correspending parts,-Figure 1 is an elevation of a window and blinds with my invention applied thereto, looking from the inside, and with the blinds closed. Fig. 2 is an enlarged horizontal section on line Fig. 1. Fig. 3 is a section on the same line with the blinds con-` nected and both operated from one side of the ,window casing. Fig. 4 is a still larger section up with two concentric walls or flanges C and Y C, the inner wall or shell C being provided with a screw-thread on its outer surface, and

- being preferably somewhat broader than the outer one C. This plate is perforated at 0. (Fig. 4) coincidently with the perforation b.

D is a knob provided with a sleeve or tube D internally screw-threaded, as shown in Figs. 2 and 4, and adapted thereby to screw onto the ange C. This knob is bored centrally at D. AspindIeE extends through the holes D 0 and b' into the casing, and is enlarged at E', where it lies in the outer Wall of said casing. A spiral spring F surrounds said spindle and lies between the shoulder formed by the enlarged portion E and the plate C. The outer end of the spindle is screw-threaded at E to receive a concavo-comI vex cap e which fits over the outer end of the knob D.

At the outer end of the spindle E is an integral extension e which extends into the openv air, and to which is pivotally secured one end of a link H whose opposite end is pivotally secured to a horizontal bar I rigidly secured to the outer surface of the blind, the outer end I of said bar being bent outward slightly as shown. When the tubular extension D secured to the knob D, is screwed onto the flange C of the plate C, as shown in Fig'. 4, it cannot be reciprocated or moved longitudinally, and the blind is practicallylocked whether it is open or closed; but as soon as the knob is unscrewed into the position shown in Fig. 2, it can be reciprocated longitudinally, 'L'. e., horizontally. Now, if the blind is to be opened, a quick pull on the knob will draw out the spindle C against the power of the spring F, with the effect of pulling the H from its outward pointing position shown in Fig. tinto an inward pointing position, as shown Ain Fig. 3, and, of course, to swing the blind quickly from a closed into an open position. The same quick withdrawal and release of Ythe knob Will swing the blind from an open into a closed position, swinging the link back into the position shown in Fig. 4.

In case it is desired to have but one side of the window casing provided with the device, one blind B may be hinged on its outer edge to the corresponding edge of the blind B', asv

at K in Fig. 3, and the edge of the blind B pivotally connected with one end of a rod L whose opposite end is slotted at L and connected thereby with a staple N or similar attachment secured to the window sill. The blinds thus arranged, being in the position shown in Fig. 3, a quick pull and release of the .knob D operate as above described to close the blind B, and the blind B', guided by the rod L, swings into its proper closed position, as indicated by broken lines in Fig. 3.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, iss

IOO

1. The herein described improved shutterworker, comprising the plate C provided with the sorewthreaded flange C', the hollow knob D provided with the screw-threaded tubular extension D', the spindle E engaging with the knob at its outer end and extending through it and the casing, a spring holding the knob and spindle normally inward, the bar I secured to the shutter and provided with the outwardly bent end I', and the link H connecting said bar and spindle, substantially as set forth.

2. The herein described improved shutterworker, comprising the plate C provided with the screw-threaded flange C', the hollow knob D provided with the screw-threaded tubular OBED DE CHAMP.

Witnesses:

HENRY W. WILLIAMS, J. M. HARTNETT. 

